| Rank | Country | 2012 Population | 2050 Expected Pop. | 1 | China | 1,343,239,923 | 1,303,723,332 | 2 | India | 1,205,073,612 | 1,656,553,632 | 3 | United States | 313,847,465 | 439,010,253 | 4 | Indonesia | 248,645,008 | 313,020,847 | 5 | Brazil | 193,946,886 | 260,692,493 | 6 | Pakistan | 190,291,129 | 276,428,758 | 7 | Bangladesh | 161,083,804 | 233,587,279 | 8 | Nigeria | 170,123,740 | 264,262,405 | 9 | Russia | 138,739,892 | 109,187,353 | 10 | Japan | 127,368,088 | 93,673,826 |
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